Adding machine



July 8 g T. E. CHERRY ADDING MACHINE 921 4 Sheets-Sheet 1 Filed Aug. 24 Q INVENTEIR HDMASE'EHERRY ATTYS.

July 8 1924. 1,500,606

- T. E. CHERRY ADDING MACHINE Filed Auz. 24. 1.921 4 Sheets-Sheet 2 N BINVENTUR HUMASEEHERRY ATTYS July 8 1924.

T. E. CHERRY ADDING MACHINE Filed Auz. 24. 1921 4 Sheets-$heet 5 INVENTDR THDMASE. CHERRY A TTYS Sheet 4 ATTYS July 8 1924,

T. E. CHERRY ADDING MACHI NE Filed Aug. 24. 192i 4 Sheets- R?! H 55 :E EH

M EH59 7 m E? Z u L liiifiwgm m 2 P u 4 c 3 J E R S m A w m 3 4, V v a J mm Patented July 8, 1924; I

THOMAS 11mm. or BOSTON, MASSACHUSETTS.

ADDING EACHIINE.

. Application filed August 24, 1921. Serial No. 494,998.

To all whom it may v Be it known that I, THOMAS E. CHERRY,

a citizen of the United States, residing at Boston, in the county of Suffolk and Stateof Massachusetts, have invented new and useful Improvements in Adding Machines, of which the following is a specification.

This invention has for its chief object to provide an attachment whereby an addingmachine, the carriage and platen of which are not automatically reciprocated endwise, may be quickly and conveniently converted into a so-called shuttle machine, in which the carriage and platen are automatically reciprocated when such reciprocation is desire w The invention is embodied in the improvements-which I will now and claim. I

Of the accompanying drawings forming a. part of this specification,-

Figures 1 and 2 are side elevations of an adding-machine embodying the invention, the typing mechanism exceptingthe platen being omitted, I

Figure 3 is a rear elevation of the same.

Figure 4- is a fragmentary rear elevation.

Figure 5 is a perspective view of the carriage-unlocking attachment hereinafter described. V

Figure 6 is a front side view of the camoperated lever hereinafter described.

Figure 7 is a section on line 7-7 of Figure6.

Figure 8 is a rear side view of the cam-op erated lever. r

The same reference characters, indicate the same parts in all of the figures.

To illustrate my invention I have shown certain elements of the well known Wales adding machine, and have designated said elements by reference letters, the elements in which my invention is embodied being designated by reference numerals.

a represents the carriage in which the impression' roll or platen b is journaled said carriage and platen being movable longi-v tudinally and guided by the usual guiding members a, c, fixed to the framed. e represents the rock-shaft which is rocked in bear ings in the frame by the alternate action of a hand lever f movable by the operator to turn the rock-shaft in one direction, and a spring 9, secured at one end to the frame, and at the other end to an arm h on the rock-shaft, the spring turning the rock-shaft I normally proceed to describe in the opposite direction when the lever is released. The plated b is rotated step by step'by the usual mechanism, which includw a push-rod having an end face j (Figure l), and a transverse baror. carriage rod it, supported by arms Z and m, which are pivoted at o, 0 to the carriage. The end face 7" contacts with the carriage rod Figure 2). The arm Z is the longer arm of a bell-crank lever, to the shorter arm Z of which is pivoted an arm Z carrying the usual pawl t, cooperating with a ratchet u on the platen to rotate the latter step by step.

The carriagek is moved laterally in one direction to cause a partial rotation of the platen by an outward movement of the lever 7 from the position shown by Figure 1, to that shown by Figure 2. The lever f is connected with the push-rod j in such manner that an outward movement of the lever causes an inward movement of the push-rod in the direction of arrow a; (Figure 2), this movement causing the end face 9" of the push-rod. to move the carriage rod is in the same direction, and thus impart a platen-rotating movement tothe pa-wlt.v When the lever is returned by-the spring 9 to the position shown by Figure 1, the push-rod y is moved outward, and allows the carriage rod is to be moved bygravity in the same direction, the pawl slipping back on the ratchet. The connections between the push-rod j and the lever f include a rocker-arm fulcrumed at s on the framed. The rocker-arm is pivoted .at one side of its fulcrum by a pin 8' to the push-rod, and at the opposite side of '23, the lower end portion of which is extended below the pin 8, the extended rockerarm performing another function, as hereinafter described.

The carriage a has the usual rod 17, which is fixedat its ends to thecarriage and is parallel with the platen b. By the employment of the mechanism described, I am able to transmit reciprocatory movements to the carriage and platen, when such movements are desired, smoothly and equally in all steps of movement, without shock-or 'ar at the end of movement in either direction. This is due to the cam 16, 17, and the lever which transmits movement from said cam to the carriage. With this structure, the operating mechanism has no part or member which stops on a dead center, or causes a jar. My inventlon is embodied in the extended rocker-arm 23, and in the mechanism next described, preferably constituting an attach ment which is applicable to a machine'j'com- -the carriage cam.

machines; for varying the length of the stroke or reciprocating movement of the carriage or platen, so that the paper con-V 'stitutingthe record-sheet or strip may be moved edgewise in some cases farther than in others; for conveniently disconnecting the carria e from the automatic mechanism which reciprocates it, so that the carriage. and platen may be moved endwise by hand;

for automatically disconnecting the platen from the mechanism which rotates it, so that the platen will be non-rotating during apredetermined period, and will be rotated stepvby-step during another period; and for manually displacing the usual memlfir which normally prevents movement of thecarriage from left to right to permit such movement When it is desired.

v, 12 represents a base plate or base extension which is attached by bolts 13 to the usual base d supporting the frame (1, said bolts being substituted, in the type of machine here shown, fortwo of the usual sup- Y porting feet the feet at the rear portion of the base being removed and replaced by;

the bolts 13. Fixed to the base extension}? is an upwardly projecting frame 14, 'ha in bearings for a shaft 15,'extending paralle with the platen. Mounted to turn loosely on the shaft 15,is a carriage-reciprocating cam, comprising a cylinder 16, having a. continuous cam groove, 17, and hereinafter re ferred to as the carriage cam. To one end of the carriage cam is .fixed a ratchet 18,

engaged by-pawls 19, which'are pivoted to a disk 20. Said disk is'fixed to a pinion 21, which is rigid on the shaft 15. The carriage cam 'is'intermittently rotated by mechanismy which includes a rack 22'. meshing with the pinion, andfmovalile in a fixed guide 22, the

extended rocker-arm 23 above described, and a link 26, connecting therocker-arm with the rack, said arm being provided with a slot 27, receiving a stud 28, which is adjustable in the slot to vary the movement imparted to the rack; When the leverf is moved forward by the operator, the rack 22 is fnoved to the position shown by Figure 2, and rotates the pinion 21 and the ratchet 18 fixed thereto, in the direction required to cause the ratchet teeth to slip on the pawls 19, rotation of'the carriage cam being Movement is communicated from the carriage cam to the carriage by a lever which is of variable length, to vary the extent of the movement imparted to the carriage, and is adapted to be rendered ino rativelto permit endwise movement oft e carriage by hand. Said .lever includes an inner member 33 having a fulcrum stud 34, journaled in a bearing 35, on the frame 14, and a tapered trundle'roll 36, entering the groove 17 of the carriage cam; an intermediate member 37 having studs 38 which are slidable in slots 39 in the inner member, and an outer member 40, connected at its lowerend by a hinge 41 to the lower end of the-intermediate member, and provided at its upper end with a tapered stud 42, having a trundle roll 42, and adapted to enter either of a plurality of slots 43 in a plate or flange 45, oonnectedby clamps-44 with the carriagerod'p.

The said intermediate member 37 endwise. on the inner member 33, this movement being prefera-bly effected by means of an adjusting screw 47, journaled in an car 48, fixed to the inner member 33, and. an ear 49, fixed to the Aknurled head 50' on the adjusting screw Theintermediate member 37 has an outpermits the rotation of the latter.

wardly projecting curved ear 51, passing through a slot 52 in the outer member 40. To said ear. is pivoted a cam 53,- having a handle 54, and adapted to press the outer member against the intermediate member,

as shown by full linesin Figure 7,,and to be displaced to permit the outer member to be forced outward by a. s ring 55, asshown by dotted lines, the trun le-roll 42 being thus withdrawn .from engagement with the carriage. I

'The means for preventing rotation of the platen duringa predetermmed period, and causing it to rotate step-by-step during another period, includes an arcuate cam ribor projection 57 on the carriage cam, a roller 58 m the path of said camrib and attached to an. arm 59 projecting outwardly from a rock-shaft 60, carried in a vertical bearing 61, fixed to the frame 14. At the upper end of the shaft 60 is a disk 62, having'mounted lever is adjustable by moving the thereon a roller 63, adapted to enga the carriage-rod k and move the same si ewise to a rear position, thus rendering it inoperative, or preventing it from occup ing a position where it. can "be actuate to' impart rotation to the platen. When the When .the cam rib-encounters theroller 58,

the rod-engaging roller 63 is pressed and positively held against the carriage-rod k, and holds the latter in an inoperative position. 7

The parts are so pro ortioned that the platen carriage rod wil only be moved by the push rod j at each alternate forward movement of the handle 7. During the push rod y the carriage will be stationary. As,

feeding motion of the platen by the the handle j returns to the position shown in Figure 1, the cani 16 will, through the lever 37, move the carriage in one direction. Thiswill position the cam 57 so that the carriage rod in will be held beyond the path of the push rod when the handle f is next drawn forward and therefore the platen will not be rotated until after the cam 16 and the lever 37 have returned the carriage to its former position and the handle is again actuated.

- The usual locking lever r is provided,

whereby the carria e is. locked against movement in its gui es 0, when the locking lever is in its operative position shown by Figure 1, and is released and permitted to move'endwise when the lockin lever is in its inoperative position shown y Figure 2.

I have provided an attachment readily applicable to the carriage, for moving the loc ing lever'r to, and confining it in its imperative position.

aid attachment is shown separately by Figure 5, and includes a bar 79, havin hooked flan es and 83 at its ends, adapts to engage out and rear portions of the carriage, a set screw 81 engaged with the flange 83, and adapted to bear on an edge portion ofthe carriage, and a cam 78, fixed to a stud 85 which is journaled in the bar 79, and bears against the forward edge of the locking lever 'r. The cam is provided with a knurled knob 86, whereby it may be turned.

When the cam 78 is turned to the osition shown by Figure 2, it moves the loc ing lever to its inoperative position. When the cam is turned to the osition shown by Figure 5, it permits the ocking lever to assume its operative position shown by Figure 1.

The carriage-reciprocating mechanism in which my invention is embodied may be installed in a machine not provided with means for automatically reciprocating the carriage and platen endwise, by substituting the extended rocker-arm 23 for the short rocker-arm with which the machine was originally provided, removing the supporting feet d from ther'ear portion of the base d, attaching the base plate 12 to the b ed by the bolts 13, connecting the link 2 with the rocker-arm, and securing the slotted fiange45 to the rod p by the clamps 44:.

To install the described attachment in an existing machine, it is necessary to first remove the shaft forming the fulcrum .9, remove the previously used rocker-arm and substitute therefor the extended rocker-arm 23, the said shaft being then replaced.

Removethe two rear existing feet corresponding to d, and place the extension base carrying the frame 14, and other mechanism, in place, and secure by means of bolts 13.- When the base plate 12 is put in place, the rack 22 and the link 26 are inserted into the machine, and the link 26 is attached to the lever 23 by means of the stud 28.

Slip the clamps 44 over the rod p, and secure in place by set screws.

Loosen the set screw of locking lever, release the bar and slip the bar over the side of the carriage, and find the correct position. Mark the point of contact of the set screw with the carriage andfile cut a groove in the carriage to receive the end of the set screw. Place the bar again in position, and set up a screw-securing bar in position.

I claim: v

vAn adding-machine comprising, in combination, a rotary platen; a movable carriage therefor; manually operated mechanism for rotating the platen step-by-step; and carriage-reciprocating mechanism including a carriage cam, a lever oscillated by said cam, a lever-engaging member on the carriage, and connections between said cam and the platen-rotating mechanism whereby the cam is rotated step-by-step to reciprocate the carriage.

I 2. An addin -machine substantially as specified by claim 1, said lever being provided with means whereby it may be separated from said lever-engaging member to permit manual reciprocation of the carriage.

3. An adding-machine substantially as specified by claim 1. said lever being of variable length to permit variation of the amplitude of movement imparted to the carriage by the lever.

4. An. adding-machine substantially as specified by claim 1, the said platen-rotating mechanism including a rocker-arm having an extension, and the said connections being engaged with said extension.

5. An adding-machine substantially as specified by claim 1, the said platen-rotating 6 v mechanism including a rocker-arm having" an extension, and said connections including a ratchet coaxial with and fixedto said cam, a pinion coaxial with the cam and independently rotatable, a ratchet-engaging pawl movable by the pinion, a rack engaged with the pinion, and 'a link connected with the rack and with the rocker,

arm extension, to reciprocate the rack and rock the pinion.

6. An adding-machine substantially as specified by claim 1, the said platen-rotatingnected with the rack and with the rockerarm extension, to reciprocate the rack and rock the pinion, yielding means being pro-' vided for preventing rotation of the cam when the pawl is moving backward on the ratchet.

7, An adding-machine substantially as specified by claim 1, the said leverincluding an inner member having a fulcrum stud journaled in a fixed bearing and a camengaging trundle-roll; and an outer member adapted to swing toward and from the inner member, and provided with a stud adapted to separably engage the lever-engaging member on the carriage, the lever e1ng provided with a spring adapted to displace the outer member from its operative position, and with means for confining the outer. member in its operative position.

8. An addin -machine substantially as specified by cla1m 1, the said lever including an inner member having a fulcrum stud journaled in a fixed bearing and. a cam-engaging trundle-roll; and an outer member adapted to swing toward and from the inner member, and provided with a stud adapted to separably' engage the lever-engaging member on the carriage, the lever being provided with means for longitudinally adjusting, and for positively securing the outer'member to. vary the operative length of the lever. K

9. An adding-machine substantially as specified by claim 1, the said lever being composed of an inner member havinga fulcrum stud journaled in a fixed bearing, and a cam-engaging trundle-roll; an intermediate member longitudinally adjustable on the inner member to vary the length of the lever, means being provided for positivelv connecting said members; and an outer member hinged to the intermediate member and provided with a stud engaged with the lever-engaging member on the carriage.

10. An adding-machine substantially as specified by claim 1, the said lever being composed of an inner member having a with the lever-engaging member on the car- 'riage.

11. An. adding-machine substantially as specified by claim 1, the said lever-engaging memberbeing a slotted plate or fiange provided with clamping meanswhereby it is secured to a rod on the carriage.

, 12. An adding-machine comprising, in-

combination, arotary platen; a movable carriage therefor; manually operated mechanism for rotating the platen step by step; and carriage-reciprocating mechanism including a carriage cam, a lever oscillated by said cam, a lever-engaging member on the carriage, connections between said cam and the platen-rotating mechanism whereby the cam is rotated step-by-step to reciprocate the carriage, the said platen-rotatin mechanism-including a rod which is latera ly mov able to impart a step-by-step rotation to the platen, automatic intermittently operating mechanism for periodically holding said bar in an inoperative position and preventing the rotationof the platen.

13. An adding-machme comprising, in

combination, a rotary platen; a movable carriage therefor;'manually operated mechanism for rotating the platen step by step; carriage-reciprocating mechanism including a carriage cam, a lever oscillated by said cam, a lever-engaging member on the carriage, connections between said cam and the platen-rotating mechanism whereby the cam is. rotated step-by-step to reciprocate the carriage,.the said platen-rotating mechanism including a rod which is' laterally movable to impart a step-by-step rotation to the platen; and automatic mechanism for periodicallyholding said rod in .an' inoperative position, including a segmental cam rib on said cam, and a rock shaft journaled in a fixed bearing and having an arm in the path 'of-said rib, and an eccentricall mounted -member inthe path of said ro and movable by the rock-shaft and cam rib to confine the rod in an inoperative position.

14. An adding-machine comprising, in combination, a rotary platen; a movable carriage therefor; manually operated mechanism for rotating the platen step by step, said mechanism including a rocker-arm fulcrumed on the main frame of the machine and provided with an extension; a supplemental frame; means securing the latter to the main frame of the machine; and carriage reciprocating mechanism including a carriage cam journaled in hearings on the supplemental frame, a lever fulcrumed on the supplemental frame and oscillatable by said cam, a lever-engaging member having clamping means engaging a rod on the carriage, and connections between said cam and the rocker-arm extension whereby the cam is rotated step by step to reciprocate the carriage.

15. In an adding-machine which includes a rotary platen, a carriage therefor, and a platen-locking lever on the carriage; an attachment for manually moving the locking lever to, and holding it in, its inoperative position, comprising a bar having clamping means engaging portions of the carriage, and a manually movable cam journaled in said bar and bearing on the locking lever.

16. An adding machine comprising, in-

combination, a frame, a reciproeatory platen carriage supported by the frame, a rotary platen carried by the carriage, manually operated mechanism for rotating the platen step by step, a lever fulcrumed on the frame and having one arm engaging said cam and another arm engaging the platen carriage, and means controlled by the operating devices of the platen rotating mechanism for imparting step by step rotary movement in one direction to the cam to actuate the lever and move the carriage in opposite directions.

1?. An adding machine comprising, in combination, a frame, a reciprocatory platen carried supported by the frame, a rotary platen carried by the carriage, manually operated mechanism for rotating the platen step by step, a lever fulcrumed on the frame and having one arm engaging said cam and another arm engaging the platen carriage, means controlled by the operating devices of the platen rotating mechanism for imparting step by step rotary movement in one direction to the cam to actuate the lever and move the carriage in opposite directions,

and means turning with the cam and adapted to render the platen rotating means inthe platen rotating means for intermittingly' rotating the platen to cause said lever to move the platen carriage in opposite directions.

In testimony whereof I have affixed my signature.

THOMAS E. CHERRY. 

